Description: Spring - the season of new beginnings. Yaegaki Satoru leaves his closed rural hometown and goes to school at the former alma mater of his deceased mother. Satoru, who is joyfully heading for a new world and a new life, is greeted by his twin sister Ruri, who should have stayed in his hometown, as well as Ruri's attendant and childhood sweetheart Kyoka. With a little depression about the old faces of the new world, Satoru begins his new life. "Cross Concerto" is a Japanese-style legendary work produced by Applique, a well-known Japanese girl game group brand, to commemorate the tenth anniversary of the brand's founding. Created by the original crew of the famous works "The Phantom of the Moon - Feather of Liberation-" and "The Forbidden Medicine of Dusk". The plot of the game is peeled off layer by layer, and there are many route endings.